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Production and application technology of coarse-grained dust-free environment-friendly cement

A coarse-grain cement technology, which is applied in the production and use process of coarse-grain dust-free and environmentally friendly cement, can solve the problems of cement dust, environmental pollution, etc., and achieve the effects of production cost reduction, environmental pollution control, and power consumption balance

Inactive Publication Date: 2015-06-10
彭铁铁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to solve the problem that today's dry ultra-fine powder cement is dusty and pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] specific implementation plan

[0012] The present invention controls the dust removal of the grinding system when crushing and calcining the bulk clinker in the cement plant, and screens out coarse clinker particles with a particle size of 0.1 to 30 mm (the selection of the optimal particle size depends on the configuration and configuration of the grinding system in the cement plant) It is selected for convenient storage and transportation, dust removal and user-friendly processing). Add gypsum, admixtures, admixtures, etc. with the same particle size after dust removal, and after inspection and sorting, they will become coarse dust-free and environmentally friendly cement to be shipped. For cement users in the present invention, large households need to add a grinding system; small households only need to add a pulverizer or mobile pulverizer and operators to provide door-to-door service; or set up some cement grinding shops at fixed points for users to order The buc...

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PUM

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Abstract

The invention discloses a production and application technology of coarse-grained dust-free environment-friendly cement. Raising dust can be effectively prevented in the whole production, storage and transportation processes from the period that the cement is calcined into a clinker to finishing pouring of a cement part by a user, so as to protect the environment. According to the production and application technology, a bulk cement clinker is not crushed as fine as the paste when crushed and calcined by a cement plant by controlling a grinding system, and is crushed into coarse particles of which the particle sizes are about 0.1-30mm; the cement clinker is separated out after being dedusted; dedusted gypsum, kinds of ingredients, additives and the like with the same particle sizes are added; the coarse-grained dust-free environment-friendly cement is prepared for delivery after arrangement and passed inspection; and the coarse-grained dust-free environment-friendly cement can be crushed into required particle sizes when being conveyed to the user to use by adding composite materials, additives and water through inspection and design requirements, or can be prepared into cement paste with the particle sizes stipulated by the national standard to use. Therefore, no raising dust is generated from firing of the clinker to pouring of the cement part by the user, so as to protect the environment.

Description

technical field [0001] The invention relates to a process for producing and using coarse particle dust-free and environmentally friendly cement, which belongs to the technical field of cement production and use. Background technique [0002] Existing cement production is to grind cement into a very fine dry powder with a particle size of less than 45 microns (about 10% of which have a particle size of less than 3 microns). Due to the huge quantity of this product, the annual output is about 2 billion tons in my country alone, and its application is extremely wide, reaching every corner of people's living and working. It caused pneumoconiosis to front-line production workers and caused serious pollution to the general environment. The smog that causes serious air pollution today is composed of various types of dust with a particle size of less than 2.5 microns. The particle size of the smog is close to that of cement particles (10% less than 3 microns) produced today. It i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/36
Inventor 彭铁铁
Owner 彭铁铁
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